Püskürtmeli Kurutucuda Hidroksiapatit-polimer Malzemelerin Hazırlanması
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Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
Özet
Bu çalışmada, hidroksiapatit-polimer malzemelerin püskürtmeli kurutucu yardımıyla üretilmiştir. Polimer olarak polivinil alkol ve kitosan kullanılmıştır. Hidroksiapatit-Polivinil alkol kompozitleri fiziksel karıştırma ve in situ biyomimetik yöntemle üretilmişlerdir. Hazırlanan kompozitleri püskürtmeli kurutucu ve etüvde kurutularak, farklı kurutma yöntemlerinin tozlar üzerindeki etkileri incelenmiştir. Ayrıca, farklı molekül ağırlığındaki polivinil alkol kullanılarak, polimerin molekül ağırlığı değişiminin kompozitler üzerindeki etkileri de incelenmiştir. Hidroksiapatit-Kitosan kompozitleri püskürtmeli kurutucu yardımıyla elde edilmiş ve püskürtmeli kurutucu parametrelerinden olan giriş hava sıcaklığının kompozitler üzerindeki etkileri incelenmiştir. Elde edilen tozların karakterizasyonu X-Işınları Difraktometresi (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM), X-ışınları Floresans (XRF) ve partikül boyut (Mastersizer, ZetaPals) analizleri yapılarak incelenmiştir.
In this study, hydroxyapatite-polymer materials was produced by using spray dryer. Polyvinyl alcohol and chitosan were used as polymer sources in the content of the work. The composites of hydroxyapatite-polyvinyl alcohol were sythesized by physical mixing and in situ biomimetic methods. Hydroxyapatite-polyvinyl alcohol composites were produced by either being dried in an oven or by using a lab scale spray dryer to compare the different drying methods on the structure of the powders. Additionally, the effect of the molecular weight of polymer on the composite structure was investigated by using different molecular weights of the polyvinyl alcohol. Hydroxyapatite-Chitosan composites were produced by spray drying, and the effect of the drying temperature on the composite structure was investigated. Produced powders were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM), X-ray Fluorescence (XRF) and particle size (Mastersizer, ZetaPals) analyses.
In this study, hydroxyapatite-polymer materials was produced by using spray dryer. Polyvinyl alcohol and chitosan were used as polymer sources in the content of the work. The composites of hydroxyapatite-polyvinyl alcohol were sythesized by physical mixing and in situ biomimetic methods. Hydroxyapatite-polyvinyl alcohol composites were produced by either being dried in an oven or by using a lab scale spray dryer to compare the different drying methods on the structure of the powders. Additionally, the effect of the molecular weight of polymer on the composite structure was investigated by using different molecular weights of the polyvinyl alcohol. Hydroxyapatite-Chitosan composites were produced by spray drying, and the effect of the drying temperature on the composite structure was investigated. Produced powders were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM), X-ray Fluorescence (XRF) and particle size (Mastersizer, ZetaPals) analyses.
Açıklama
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2010
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2010
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2010
Konusu
Hidroksiapatit, Püskürtmeli kurutucu, Polivinil alkol, Kitosan, Hydroxyapatite, Spray dryer, Polyvinyl alcohol, Chitosan
